解开转录组形状,表观遗传动力学和牛皮样角质细胞的形态变化:"了解与牛皮病变性表皮的相似性"
Ameneh Ghaffarinia1,2,3, Szilárd Póliska4, Ferhan Ayaydin5,6
1HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary.
Cells
|December 22, 2023
概括
牛皮的炎症会改变细胞形态和基因表达. 轻微的炎症令人惊的是,比严重的炎症更多地反映了牛皮的皮肤转录组,揭示了动态的表观遗传变化.
科学领域:
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 角质细胞是牛皮病原发生的关键细胞.
- 了解角质细胞对炎症的反应对于牛皮研究至关重要.
研究的目的:
- 为了研究状细胞形态,转录组和表观组在牛皮类炎症下发生的变化.
- 为了比较炎症的角质细胞和牛皮的表皮之间的转录学相似性.
主要方法:
- 开发了一种新的细胞因子混合物,可在培养的角质细胞中诱导轻度和重度的牛皮状炎症.
- 利用共聚焦显微镜,RNA测序,免疫光染色和全球DNA甲基化试验.
- 分析了差异表达基因 (DEG) 和表观遗传修饰剂调节.
主要成果:
- 炎症的角质细胞显示出一种类似于介质细胞的表型,具有增加的VIM mRNA.
- RNA测序显示在轻度 (858) 和严重 (6987) 炎症中都有显著的DEG.
- 轻度炎症的角质细胞表现出更类似于牛皮疹表皮的转录形状,而不是严重炎症的,IL-17通路基因是显著的贡献者.
- 炎症调节的表观遗传修饰剂 (HATs,HDACs,DNMTs,TETs) 和改变的DNA甲基化模式 (明显的5-hmC,减少的5-mC倾向).
结论:
- 炎症的严重程度严重影响了状细胞与牛皮的表皮的转录学相似性.
- 角质细胞经历动态表观遗传调节和适应性形态变化,以应对炎症.
- 这些发现突出了在牛皮中炎症,表观遗传学和细胞表型之间的复杂相互作用.
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